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How to empty a redis database?
... want to add one more option (requires downtime):
Stop Redis.
Delete RDB file (find location in redis.conf).
Start Redis.
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How to elegantly deal with timezones
...3 - We can improve this further, by saving the timezone id in each User profile so we can retrieve from the user class instead of using constant "China Standard Time":
public class Contact
{
...
public string TimeZone { get; set; }
...
}
4 - Here we can get the list of timezone to sho...
Using scanf() in C++ programs is faster than using cin?
...ity);
return 0;
}
Results
Using a third program, I generated a text file containing 33,280,276 random numbers. The execution times are:
iostream version: 24.3 seconds
scanf version: 6.4 seconds
Changing the compiler's optimization settings didn't seem to change the results much at a...
How can I get the domain name of my site within a Django template?
... name for a Site in the database (mapping the request domain to a settings file with the proper SITE_ID is something you have to do yourself via your webserver setup). In that case you're looking for:
from django.contrib.sites.models import Site
current_site = Site.objects.get_current()
current_si...
chrome undo the action of “prevent this page from creating additional dialogs”
...aged to fix it for him with the following process:
a) Make an empty text file called FixChrome.sh, and paste in the following bash script:
#! /bin/bash
cd ~/.config/google-chrome/Default //adjust for your Chrome install location
rm Preferences
rm 'Current Session'
rm 'Current Tabs'
rm 'Last S...
How can I show the name of branches in `git log`?
... needed to show the branches/tags. Adding --name-only will also show which file was actually changed.
cd /path/to/repo-that-uses-blackbox-encryption
git log --graph --all --decorate --source --name-only keyrings
Another useful answer: How to show git log with branch name
...
“new” keyword in Scala
...cause it is spec'ed that a companion object has to be declared in the same file as its companion class. Because the companion "property" exists only in Scala and not on Bytecode-level scalac has to check the Scala code and not the Bytecode to be sure that the spec is followed.
–...
How to list only top level directories in Python?
...e to list only the directories inside some folder.
This means I don't want filenames listed, nor do I want additional sub-folders.
...
Emacs, switch to previous window
...window of your choice based on geometry. I have the following in my .emacs file to change windows using C-x arrow-key.
(global-set-key (kbd "C-x <up>") 'windmove-up)
(global-set-key (kbd "C-x <down>") 'windmove-down)
(global-set-key (kbd "C-x <right>") 'windmove-right)
(global-set...
Authenticate Jenkins CI for Github private repository
...ith more details of the URLs being used, the names and location of the key files, etc.
Now for the technical part: How to use your SSH key with Jenkins?
If you have, say, a jenkins unix user, you can store your deploy key in ~/.ssh/id_rsa. When Jenkins tries to clone the repo via ssh, it will tr...